An investigation of electronic phases and charge dynamics in low-dimensional system

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PhD; 2023; Physics

In condensed matter physics, the concepts of topology and symmetry are of paramount importance, particularly in understanding quantum phase transitions. Topology classifies objects based on their topological properties, which are properties that are preserved under continuous deformation. This is relevant to a wide range of phenomena, such as topological insulators and the quantum Hall effect. On the other hand, symmetry is used to understand phase transitions, where a higher symmetry group is broken into a lower symmetry subgroup. The study of quantum phases and phase transitions is a fundamental theme in condensed matter physics, and topology and symmetry play a critical role in comprehending these phenomena. This field of research is vital in understanding the behavior of matter at the quantum level and has potential applications in quantum computing and other technologies This thesis mainly explored the quantum phase transitions through resistance fluctuation spectroscopy. The first part of the thesis focused on uncovering the electronic phases in 1T-TaS2 .